Search Result for "quartile": 
Wordnet 3.0

NOUN (1)

1. (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores;


The Collaborative International Dictionary of English v.0.48:

Quartile \Quar"tile\, n. [F. quartile aspect, fr. L. quartus the fourth. See Quart.] (Astrol.) Same as Quadrate. [1913 Webster]
WordNet (r) 3.0 (2006):

quartile n 1: (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores